SPL Parts Aluminum Brake Cooling Air Deflectors (TR BD) deflect air passing under the car towards the front brake rotors for increased brake cooling. Anodized black for corrosion protection.Note: Mounts to our SPL Parts V2 or V3 Tension Rods (#SPL TR S13/S14/R32 GTR, TRO S13/S14) only! These are NOT compatible with any other tension rods. Designed for use with 17&rdquo